| Issue |
E3S Web Conf.
Volume 360, 2022
2022 8th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2022)
|
|
|---|---|---|
| Article Number | 01089 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/e3sconf/202236001089 | |
| Published online | 23 November 2022 | |
Image enhancement with luminance preserving is a false proposition and others
1 Medical Informatics College, Chongqing Medical University, Chongqing 400016, China
2 College of Grand health and Intelligent Engineering, Chengdu Medical College, Chengdu 610500, China
* Corresponding author: 101044@cqmu.edu.cn
The “image enhancement with luminance preservation” is a self-conflict proposition. Researchers, including propositional proposer Kim, gave the index AMBE (absolute mean luminance error) to judge if the “luminance preserving”, however, which just proved that the image enhancement with “luminance preserving” cannot be realized. We have proved that the visual quality of an image is a function of the image average luminance with convex feature. The image cannot be enhanced with luminance preservation, and the luminance cannot be preserved with image being enhanced. The visual perception quality of an image is not equal to the image contrast. We can experimentally prove what the higher the contrast of the image, the better the visual quality of the image is not true.
Key words: Luminance preserving / Image quality enhancement / Contrast / False proposition
© The Authors, published by EDP Sciences, 2022
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